How am I supposed to answer this when it isn’t educational, this app is here for a community to help each other, so please stop goofing around and ask help with other thing instead.
I believe the answer is A. Tell me if I am wrong, hope I helped!
No because doesn’t is the only “negative” in the question
1. Mary went to the library so that she could borrow some books.
2.Though he had left home early, he was late for the class.
3. The tea was very hot, so she couldn't drink it.
Not sure on the first one, but I hope this helps!